397457736

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1273903}}^1$

素因数の和:1273925

約数の個数: 32

約数和(自身を含む): 1070079360

約数和(自身を除く): 672621624

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 1273903, 2547806, 3821709, 5095612, 7643418, 10191224, 15286836, 16560739, 30573672, 33121478, 49682217, 66242956, 99364434, 132485912, 198728868, 397457736]

約数ペア:

[(1, 397457736), (2, 198728868), (3, 132485912), (4, 99364434), (6, 66242956), (8, 49682217), (12, 33121478), (13, 30573672), (24, 16560739), (26, 15286836), (39, 10191224), (52, 7643418), (78, 5095612), (104, 3821709), (156, 2547806), (312, 1273903)]